A visual defect in which nearby objects appear blurred because their images
are focused behind the retina (the light-sensitive
layer at the back of the eye). Hyperopia, or
far-sightedness ("long-sightedness" in the UK), is due to the eyeball being
slightly shorter than normal or the lens
of the eye unable to become round enough. It can be corrected by using converging
spectacle lenses or contact lenses
to move the image back to the retina or through the surgical procedure known
as LASIK (laser in situ keratomileusis).
| Image © Nucleus Communications,
Hyperopia can affect both young and old but, in most people, tends to be
a condition that appears in middle age, typically becoming a significant
factor in vision beyond the age of about 50.